51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫，访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习：Physics Unit17: Electric Potential
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 75 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://51fly.win/test75.html
 作者: physics  发布日期: 2022-08-15 14:49    总分: 75分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月15日 14:49  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is nvvc yb7m n(;:not a vector?

参考答案:    
标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One joule per coulomb isvpmfmewkq5lu :o8t r:2ie/hn* *7 ;ie a

参考答案:    
标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two identical aluminum objects are insulated from their surroundings. Object i(nvrf +)vf h0kq s+dsf*4me3A has a net charge of excess electrons. Object B is grounded. Which object is at a highe q fs )dki*sn4hv f(+0mre3v+fr potential?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a proton moving in the direc5h45fr u9 vfyg/ olup)tion of the electric field

参考答案:    
标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For an electron moving in a direction opposite qs2cg1.u+hbw0yq ycv;m0 3d for -2rn to the electric field

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Several electrons are placed on a hollow conducting spher17s jxmku8o2quhe (4 yw0u:gl e. They

参考答案:    
标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A small charged ball is accelerate:7ocaah * 8 jd0z77iqgsu 4b92qgmlemd from rest to a speed v by a 500 V potential difference. If the potential difference is changed toc7g8hj s0q u7eozba* 7:4mma qg92ild 2000 V, what will the new speed of the ball be?

参考答案:    
标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A surface on which all points as,( ct-lt2n f 2fi5v tq2fw7qpre at the same potential is referred to as

参考答案:    
标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A negative charge is moved fromp95jwev8 7kig,ps )pi point A to point B along an equipotential surface pp,i j8kv5pwis9)g7e.

参考答案:    
标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An equipotential surface musyoh ,/b/ pkwy6t be

参考答案:    
标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The energy acquired by a particle carrying a charge equal to that on the electb:t y2x4 8; diwrdwnk2.)fywiron as a result of moving through a potential difference of one volt:wi ;fdn y)2kb y4 rwdwx28i.t is referred to as

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron-volt is a ukq u+:jn:td4anit of

参考答案:    
标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One electron-volt corre6; /hxshoxqv* sponds to

参考答案:    
标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at a distance3m; -k6 mwac4rb+s dri7y0 dri l.0tgr of 2.0 m from a positive point charge is 100 V. What is the absolute potential 4.0 m away from the same psgm;k 760r34t-r .lrwd +cyi0rbadimoint charge?

参考答案:    
标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at a distance of 2.0 m from a negative poj,g qi)qoy,2vzvcp264zsbj 3int charge is -100 V. What is the absolute potential 4.0 m away from the same po)zvbi,zq y g4j3 vqo,6jp22 csint charge?

参考答案:    
标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at the exact01pl.u+jhjq d center of a square is 3.0 V when a charge of +Q is located at one of the square's corners. What is the absolut.pj1lq+ dj0h ue potential at the square's center when each of the other corners is also filled with a charge of +Q?

参考答案:    
标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute potential at the center of ju.h5dn0p ( kekxx3kga kb:,;a square is 3.0 V when a charge of +Q is located at one of the square's corners. Whdxkpxj nk(kgh5.e0ab:u, k ;3at is the absolute potential at the square's center when a second
charge of -Q is placed at one of the remaining corners?

参考答案:    
标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Electric dipoles always consist of two 8e 8vpcr+f9l)k 3ppktcharges that are

参考答案:    
标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One coulomb per volt is ao; +u1tjrn3 q-ffo+td

参考答案:    
标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel-plate capacitors are identical in every respe8-l 7gt-a r :gug;df8mpxcrm 1ct except that one has twice the plate area of7m8a-u lr 1gptmr g d8-:gfcx; the other. If the smaller capacitor has capacitance C, the larger one has capacitance

参考答案:    
标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has a capacitance of C. If the area of the plog7fk 5k la u3+t,dxqx rz945oates is doubled and the distance between the plateq3flu5k7zx o49 xk+rda 5o,g ts is halved, what is the new capacitance?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A battery charges a parallel-plate capacitor fully and then is rl92yfhus u vqtj/0 3/na;j0ovu-ys,memoved. The plates are immediately pulled apart. (With the battery disconnected, the amount of charge on the plates remvv y0 uq/nh fj9tj0um;l sus/o2ay3, -ains constant.) What happens to the potential difference between the plates as they are being separated?

参考答案:    
标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the electric field between the plates of a given capacitor is weakene9-jry,z 7xlw8hww3nyd, the capacw-8hnzxj ,y 3y7lwwr9 itance of that capacitor

参考答案:    
标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate capacitor are maintained with constant vm qj;bq /ep)q8oltage by a battery as they are pulled apart. During this process, the amount of charge on the plates muste;8 mpb/jq qq)

参考答案:    
标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The plates of a parallel-plate capacitor are maintaineeqn n .zpk/*w4e7d+yod with constant voltage by a battery as they are pulled apart. What happens to the strength of te.nwod+z/q4 k ey*p 7nhe electric field during this process?

参考答案:    
标记此题
26#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State three reasons for adding a divx0i /fvta/7ybbssnu(7w/ay1 b9l-8e zbu m5 electric material between the plates of a capacitor. ta81buzy7 ysw5uvnsxle//b( 7/b0 - bv9iafm
参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A dielectric material su1dw2p4c 44smp(h odhcch as paper is placed between the plates of a capacitor. What happens to4w1csph4 4o 2dp mh(cd the capacitance?

参考答案:    
标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A dielectric material suchpx;32xn-,m bks ;j5 c* nptzck)dpm1a as paper is placed between the plates of a capacitor holding amcc m 2kx,3 zns pad;)-b1*5;pxptjnk fixed charge. What happens to the electric field between the plates?

参考答案:    
标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is conns q kwcjkm9y22*mp 41qected to a battery and becomes fully charged. The capacitor is then disconnected, and the separation between the plates is increased in such a way that no charge leaks w94js* 1qm2 pkcq mk2yoff. The energy stored in this capacitor has

参考答案:    
标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the capacitance of a capacitor holdinv p 1ak.h*au)jg a constant charge causes the energy storedap.j vhk)u*a 1 in that capacitor to

参考答案:    
标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling the voltage acro ze/ti 8zhd/m 8w*ci,lss a given capacitor causes the energy stored in that capacitor t,8 t hi8iz/dc* lmwz/eo

参考答案:    
标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  It takes 50 J of energy to move 10 C 6;9cin9ihvcs of charge from point A to point B. What is the poi v 9i;9shc6nctential difference between points A and B?

参考答案:    
标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The net work done in moving an electron from point A, where ;zj qd*qu (e;uthe potential is -50 V, to point B, where the u; zqd; e(qju*potential is +50 V, is

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially at rest, is accelerated through an elect jh5gxl sz9kau2jc 55+ric potential difference of 500 V. What is the kizc2ugjx h+j95 s5 l5aknetic energy of the proton?

参考答案:    
标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton, initially at restjwyn9gu lw65nhng ay ht9uy2tk r5 hh :2-36,q, is accelerated through an electric potential difference of 500 V.k tlhjq, yy2nh65ynt2w nu39 6uhwgha:r9g- 5 What is the speed of the proton?

参考答案:    
标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Starting from rest, a proton falls through a potential diffe+8ik7 txsx1+u ; i/tqpjt pid3rence of 1200 V. What speed does it acqui+ip idp xsqiut7+j3 1t8x;/kt re?

参考答案:    
标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much work does 9.0pkmprhn.auu/y69 w e 8;36t cy V do in moving $8.5 \times 10^{18} \; electrons$?

参考答案:    
标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stationary electron is accwv 5cb*x+ b1wmelerated through a potential difference of 500 V. What is the velocity of thecb w5wm1+*x bv electron afterward?

参考答案:    
标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-g object carries a charge of 20 mC. The o3en 70xa.ppdmqa ug)5bject is accelerated from rest through a potential difference, and afterward the ball is moving at 2.0 m/s. What isea7a5)gpnq.ux 3 dmp 0 the magnitude of the potential difference?

参考答案:    
标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0-V battery maintains the et yvmgly425/ilectrical potential difference between two parallel metal plates tgiy2mlv4 5y/ separated by 1.0 mm. What is the electric field between the plates?

参考答案:    
标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A uniform electric fi6iisp qk;8t -skw ;kb4eld, with a magnitude of 500 V/m, is directed parallel to the +x axiks 8 kb-skwti;4;p6i qs. If the potential at x = 5.0 m is 2500 V, what is the potential at x = 2.0 m?

参考答案:    
标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed toward the e ujc*5;hkn )(auqyb*sast. If the voltage measured relative to ground at a given point (sn uj*b;huk)y5aq c* is 80 V, what is the voltage at a point 1.0 m directly west of that point?

参考答案:    
标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A proton moves 0.10 m ge26th mo(tkdzj..t .along the direction of an electric field of magnitude 3.0 V/m. What is the change in kingo.2.htjm(tz 6 td. keetic energy of the proton?

参考答案:    
标记此题
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separated by 0.20 m, are connected to a 1 t25l3nu+wmwam, sut62-V battery. An electron released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 1.50 m from the positive plate, what is the potential difference between the initial a25 w,mt 3nmwtuslu+a6nd final points?

参考答案:    
标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separxm u 03yg+h r /v20-wyf2orvujated by 0.20 m, are connected to a 12-V battery. An electron released from rest at a location 0.10 m from the negative plate. jwrghx/v2 30-+m0yu 2ruvfyoWhen the electron arrives at a distance 0.050 m from the positive plate, how much kinetic energy does the electron gain?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two parallel plates, separated by 0.20 m, are connected to a 12-Vfs gxur2 4tn/3 battery. An electron released f2r/ s3fu gxnt4rom rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, what is the speed of the electron?

参考答案:    
标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed toward the tkypusiw./o z. 6p,h.ta 7uf,east. If the voltage measured relative to ground at a given point in the field is 80 V, what is the voltage /u,tzh aw6 ,t.pfk..7ipouy sat a point 1.0 m directly east of the point?

参考答案:    
标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a uniform electric field of 50 N/C directed tow2ejj.,j6m srcvw7/tn ard the east. If the voltage measured relative to ground at a given po /7tmwe2.scj 6vjjnr,int in the field is 80 V, what is the voltage at a point 1.0 m directly south of that point?

参考答案:    
标记此题
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a Cu2+ ion drops through a potential difference of s/d.vghn 1bb .6 uo+nu12 V, it will acquire a kinetic energy /+ 61don .hus.v nbugb(in the absence of friction) of

参考答案:    
标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential at a distance of )xnbp84 nzi4 ldvja-9 $5.0 \times 10^{-10} \; m$ from a nucleus of charge +50e?

参考答案:    
标记此题
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two 3.00-mC charges q- 8xj1swvf- gare at the ends of a meter stick. Find the electrical potential -vjsf8q1-wg x for the center of the meter stick.

参考答案:    
标记此题
52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (0, 0) and a -2.0-nC charq6;1k-v fkcf 12 npbm,is9* sxw zs/zzge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electr9sisf1v-czk 2m,;zsfxzp/* n6b1wkq ic potential at point (0, 4.0 m)?

参考答案:    
标记此题
53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (0,rp lj 1rum /0+a (fg.rk;l.nfx 0) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the electric potential energy of a xjrkgp lru rf(a; f.1 m0l+/n.1.0-nC charge at point (0, 4.0 m)?

参考答案:    
标记此题
54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-nC charge is at (0, 0) and a -2.0-nC cha :v-mnck.x ;kl8y-l6hdaw f v*rge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is the work required h ;l6:nwkv8 cya-dmvl k*-f .xto bring a 1.0-nC charge from infinity to point (0, 4.0 m)?

参考答案:    
标记此题
55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four charges of equal charge +q are placed a+vpp2d4v57x fc +xyxj t the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if q = 2.0 mC, axx pydj52vx++vc4 p f7 = 3.0 cm, and b = 4.0 cm?

参考答案:    
标记此题
56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A square is 1.0 m on a side. Charge fprs .-9y4r*uim.ab vs of +4.0 mC are placed in two diagonally opposite corners. .9mba us-yr rifv.p*4 In the other two corners are placed charges of +3.0 mC and -3.0 mC. What is the absolute potential in the square's center?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle (charge +2e, massusej iwg,ig7 2b5 h0x5 $6.64 \times 10^{-27} \; kg$) moves head-on at a fixed gold nucleus (charge +79e). If the distance of closest approach is $2.0 \times 10^{-10} \; m$, what was the initial speed of the alpha particle?

参考答案:    
标记此题
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is necessary to place thkij j5*eivrajr;/ w*8(-ghqp.v6 h4qte /qhkree charges, each of 2.0 mC, at the corners of an equilateral triangle of siaqh*e i-r .tvk/*qhh(wq8 vg;5 ke6 p4jj/irjde 2.0 cm?

参考答案:    
标记此题
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What charge appears go4 i230g9v5f2sf/ z9sdnakrn*pap p on the plates of a 2.0-mF capacitor when it is charged to 100nzg/n0s9o2sf2p*p dvp3f 9i5raa4 gk V?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitorf(bd9 v5x*tfxv qm7-i has plates of area $0.50 \; m^{2}$ separated by a distance of 2.0 mm. What is this capacitor's capacitance?

参考答案:    
标记此题
61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is f t3i(w8wzi;0 s oxls1yz2ema-illed with air, and the plates are separated by 0.050 mm. If tw i;xo mi3y- aet18zs(wl0zs 2he capacitance is 17.3 pF, what is the plate area?

参考答案:    
标记此题
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capash8x24re.hugg /hj3 a3qa.cv citor has plates of area $0.20 \; m^{2}$ separated by a distance of 1.0 mm. What is the strength of the electric field between these plates when this capacitor is connected to a 6.0-V battery?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor has a plate sejv)tvsb9a2d0 sx43 sk w *hdg:*+xe chi9hc8kparation of 5.0 cm. If the potential difference between the plates is 2000 V, with the t0 csa dsw3si j9d*gxb9h)vh*v2k k:cex4+h 8top plate at the higher potential, what is the electric field between the plates?

参考答案:    
标记此题
64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0-mF air capacitor is connected acrossovw0-ks+uo+ o a 100-V battery. After the battery fully charges the capacitor, the capacitor is immersed in transformer oil (dielectric constant = 4.5). How much additional charge uk+o0+-owvs o flows from the battery, which remained connected during the process?

参考答案:    
标记此题
65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A charge of 60 mC is placed on a 15 3xbur::wkjax)oy0z: :s k:ta mF capacitor. How much energy is stored in the capaci0tx :uzk skrw:y):aja3o:x b:tor?

参考答案:    
标记此题
66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  20 V is placed across a 15 mF capacitor. What is the e1dkx qpsh )0-/ bwev+f p6rkb9nergy stored in the capacite6xkbbvppwsk1h)+/r9d f0 q -or?

参考答案:    
标记此题
67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A charge of 2.00 mC flows.k-j hh l8;vxj onto the plates of a capacitor when it is connected to a 12.0-V battery. How much work was don ;-hhj x8ljv.ke in charging this capacitor?

参考答案:    
标记此题
68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a 10-mF capacitor is charged so that itib0d d+ sn2,ib stores $2.0 \times 10^{-3} \; J$ of energy, what is the voltage across it?

参考答案:    
本习题练习全部题目来源于51fly国际课程 (https://51fly.win)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacito*ljpg+x an u:)r consists of plates of area $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the capacitance?

参考答案:    
标记此题
70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor consists of platem7(un.j 0o mpgnp2 insw--( qvs of area $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the charge on the plates?

参考答案:    
标记此题
71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor consists w-)2 y h: jytrj*fk7-hcm8drh of plates of area $1.5 \times 10^{-4} \; m^{2}$ and separated by 1.0 mm. The capacitor is connected to a 12-V battery. What is the electric field between the plates?

参考答案:    
标记此题
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is constructed with plate area ofq iv of) i7812rdb/hud $0.40 \; m^{2}$ and a plate separation of 0.10 mm. How much charge is stored on it when it is charged to a potential difference of 12 V?

参考答案:    
标记此题
73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A parallel-plate capacitor is constructed wib3u 6 2t+oosg+3b 1)ajbjqlf0g0xx bmth plate area of $0.40 \; m^{2}$ and a plate separation of 0.10 mm. How much energy is stored when it is charged to a potential difference of 12 V?

参考答案:    
标记此题
74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 15-mF capacitor is connected to awg1 r 2;5t7zwks f h/ygage)a5 50-V battery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric has a dielectric constant of 5.0, what is the capacitance of the capacitor after the slab is insertk2ga5a ;g5h z we/y)tf7g wr1sed?

参考答案:    
标记此题
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 15-mF capacitor is connected to a 50-V battery alk opsd 83ts-;7sc0bmgux t/(nd becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is insert (0c3mtu dk8/7 lgsp;sxobst-ed. If the dielectric has a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

参考答案:    
  • :
    •
    总分:75分 及格:45分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题，此次习题练习共有 75 道题

    试卷内容到此结束!   © 2024 51fly国际课程 (https://51fly.win)版权所有

    浏览记录|使用帮助|手机版|51fly国际课程 (https://51fly.win)

    GMT+8, 2025-5-8 05:16 , Processed in 0.376581 second(s), 180 queries , Redis On.